Siko Magnetic sensor MSAC501
Siko Magnetic sensor MSAC501
Sku: SIK-MSAC501
Absolute, high-resolution position acquisition for rotative applications
Product Information
The MSAC501 magnetic sensor serves truly absolute roto measurement, e.g., on large 3-phase current or torque motors.The sensor has the standardized SSI or 485 interfaces. Optionally, an LD output can be selected for incremental signal output. Circumferential speeds of 25 m/sec (incremental) or 5 m/sec (absolute) can be attained.
Profile MSAC501:
Max. resolution 0.0014° (MRAC501) or 4.88 µm
Repeat accuracy of 0.0014° (MRAC501) or 4.88 µm
System accuracy ±0.06° (MRAC501) or ±0.03 mm
SSI output circuit, RS485 (absolute), optional LD (incremental)
Signal period 5 mm
Status LEDs for diagnosis
Mechanical data
| Feature | Technical data | Additional information |
|---|---|---|
| Housing | zinc die-cast | |
| Sensor/ring reading distance | ≤0.2 mm |
Electrical data
| Feature | Technical data | Additional information |
|---|---|---|
| Operating voltage | 4.5 … 30 V DC | |
| Power input | <1.5 W | |
| SSI clock speed input | ≤750 kHz |
depending on cable length |
| Output circuit |
without, LD (RS422) |
|
| Interface |
SSI, RS485 |
|
| Cycle time | ≤30 µs | |
| Type of connection | M12 plug connector (A-coded) | 12-pole, 1x pin |
System data
| Feature | Technical data | Additional information |
|---|---|---|
| Pole length | 5 mm | |
| Resolution | 4.88 µm | |
| 0.0014° | at MRAC501-256 pole | |
| Scaling factor | 7, 8, 9, 10 bit | absolute |
| 7, 8, 9, 10 bit | incremental | |
| System accuracy | ±0.06° |
at TU = 20 °C |
| ±0.03 mm |
at TU = 20 °C |
|
| Repeat accuracy | ±0.0014° |
at TU = 20 °C |
| ±0.005 mm |
at TU = 20 °C |
|
| Measuring range | 360° | single-turn |
| Circumferential speed | ≤5 m/s | absolute |
Circumferential speed, incremental
| Circumferential speed April | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Incremental scaling | 7 Bit | 25.00 | 15.63 | 7.81 | 3.13 | 1.95 | 0.98 | 0.49 | 0.24 | 0.12 |
| 8 Bit | 19.53 | 7.81 | 3.91 | 1.56 | 0.98 | 0.49 | 0.24 | 0.12 | 0.06 | |
| 9 Bit | 9.77 | 3.91 | 1.95 | 0.78 | 0.49 | 0.24 | 0.12 | 0.06 | 0.03 | |
| 10 Bit | 4.88 | 1.95 | 0.98 | 0.39 | 0.24 | 0.12 | 0.06 | 0.03 | 0.01 | |
| Pulse interval [μs] | 0.2 | 0.5 | 1 | 2.5 | 4 | 8 | 16 | 32 | 66 | |
| Counting frequency [kHz] | 1250 | 500 | 250 | 100 | 62.5 | 31.25 | 15.63 | 7.81 | 3.79 | |
Ambient conditions
| Feature | Technical data | Additional information |
|---|---|---|
| Ambient temperature | -30 … 85 °C | |
| Storage temperature | -40 … 85 °C | |
| Relative humidity | 100 % | condensation admissible |
| EMC | EN 61000-6-2 | interference resistance / immission |
|
EN 61000-6-4 |
emitted interference / emission |
|
| Protection category | IP67 | EN 60529, mating connector mounted |
| Shock resistance | 500 m/s2, 11 ms |
EN 60068-2-27 |
| Vibration resistance | 100 m/s2, 5 … 150 Hz |
EN 60068-2-6 |
Ordering table
When ordering the system components please take care that the same code size is used
| Feature | Order data | Specifications | Additional information |
|---|---|---|---|
| Code size |
A7 |
7 bits | |
|
8 |
8 Bit | ||
|
9 |
9 Bit | ||
|
10 |
10 bits | ||
|
11 |
11 bits | ||
| absolute scaling |
B7 |
7 bit | |
|
8 |
8 bit | ||
|
9 |
9 bit | ||
|
10 |
10 bit | ||
| Interface |
CRS485 |
SIKONETZ3 | |
|
SSI |
SSI | ||
| Output circuit |
DO |
without | |
|
LD |
LineDriver | ||
| incremental scaling |
E7 |
7 Bit | only with LD |
|
8 |
8 Bit | only with LD | |
|
9 |
9 Bit | only with LD | |
|
10 |
10 Bit | only with LD | |
| Pulse interval |
F… |
0.2, 0.5, 1.0, 2.5, 4.0, 8.0, 16.0, 32.0, 66.0 in µs | only with LD |
Ordering key
MSAC501-A-B-C-D-E-F-S
For more information, click here!
- Data sheet
- Installation Instructions
- Mounting instructions software RS485
- Mounting instructions software SSI
- EU-conformity declarations
Pin assignment
Without LD
| SSI | RS485 | PIN |
|---|---|---|
| nc | nc | 1 |
| D+ | DÜA | 2 |
| D- | DÜB | 3 |
| T- | nc | 4 |
| +UB | +UB | 5 |
| nc | nc | 6 |
| nc | nc | 7 |
| nc | nc | 8 |
| nc | nc | 9 |
| config | config | 10 |
| T+ | nc | 11 |
| GND | GND | 12 |
With LD
| SSI | RS485 | PIN |
|---|---|---|
| nc | nc | 1 |
| D+ | DÜA | 2 |
| D- | DÜB | 3 |
| T- | nc | 4 |
| +UB | +UB | 5 |
| /A | /A | 6 |
| A | A | 7 |
| /B | /B | 8 |
| B | B | 9 |
| config | config | 10 |
| T+ | nc | 11 |
| GND | GND | 12 |
Hint for mounting
When mounting sensor and magnetic ring, please be careful to align both system components correctly.
| A, Sensor/ring reading distance (active measurement area) |
≤0.2 mm |
| B, Lateral offset | ±1.5 mm |
| C, Alignment error | <±0.5° |
Further assembly instructions for the MSAC501 magnetic sensor can be found in the MBAC501 magnetic band data sheet
Symbolic sensor representation
Scope of delivery
- distance gage
- Mounting instructions
- MSAC501